Digital BW, The Print

Forgive the OT post but I know many of you purchase from MIS 
Associates and I would like your input on their customer service. I 
was planning to purchase MIS bw carts for my C82 and/or my 1160, but 
I am having second thoughts because MIS has failed to respond to a 
customer service problem I'm having. The cartridge resetter I 
purchased seems to be defective (tried 3 diff carts), which has 
prevented me from refilling their carts with the UC match inks I 
purchased from them. I contacted MIS via Email last Sunday but have 
had no response thus far. I am unable to telephone MIS during the day 
so email is my method of contact.  I used their Customer Service/Tech 
Support email address. 

Is this typical of MIS' customer service?

TIA for input/suggestions.

Linda J